Dan Asimov wrote:
Dan, may I forward your email to him?
No.
Understood.
Also, can anyone provide the Gardner reference Dan has in mind?
6th Book of Mathematical Diversions, p. 63, with illustation.
Gardner says there is a proof in Stephen Barr's Experiments in Topology (1964), but Barr attributes the method to Gardner and provides no proof.
I'm trying to locate this in my CD of all Gardner's columns, but unfortunately when MAA re-released the books, they gave them different titles (and possibly traded material between books). Can anyone locate this column on the CD, or provide a word from the column that uniquely specifies it? (Lots of columns contain the words "Stephen", "Barr", and "Topology", and I don't know how to get my Mac to search for two-word phrases.) Thanks, Jim Propp